Apparatus for mixing liquids



(No Model.) 3 Sheets-Sheet 1.

W. R. DIEHL & G. McGARGO. APPARATUS FOR MIXING LIQUIDS.

No. 595,942. Patented Dec. 21, 1897.

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(No Model.)

W. R. DIEHL & G.

APPARATUS FOR MIXING LIQUIDS.

No. 595,942. Patented Dec. 21, 1897.

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6 s 3. 4 Y. m m w UNITED STATES PATENT OFFICE.

WALTER R. DIEHL AND GRANT MCOARGO, OF PITTSBURG, PENNSYLVANIA.

APPARATUS FOR MIXING LIQUIDS.

SPECIFICATION forming part of Letters Patent NO. 595,942, dated December 21, 1897. Application filed April 8, 189']. Serial No. 631,237- (No model.)

To all whom it may concern;-

Be itknown-that we, WALTERR. DIEHL and GRANT MCCARGO, citizens of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania,h'ave invented or discovered certain new and useful Improvements in Apparatus for Mixing Liquids, of which improvements the following is aspecification.

The invention herein relates to certain improvements in apparatus for mixing liquids, such as lubricants, and charging the mixed liquids into a suitable receptacle for .sale or storage of the same; and the object of the invention is to provide suitable mechanism whereby the proportions of the material to be mixed can be absolutely regulated and then the materials thoroughly commingled and charged into the receiving-receptacle.

The invention is hereinafter more fully described and claimed.

In the accompanying drawings, forming a part of this specification, Figure 1 is a sectional elevation of our improved apparatus,

- the plane of section being indicated by the line I I, Fig. 2. Fig. 2 is a similar view, the

plane of section being indicated by the line 11 II, Fig. 1. Fig. 3 is a horizontal section, the plane of section being indicated by the line III III, Fig. 1; and Fig. 4 is a detail view of the valve mechanism employed for controlling the movements of the liquids.

' In the practice of our invention three or I more cylinders 1 2 2, &c., are secured to suitable standards or supports 3, said cylinders being by preference cast integral witheach other. Pistons 3, 4, and'4 are arranged within these cylinders and are connected by adjust-- able-pitmen 5, 6, and 6 to crank arms or disks 7, 8, and 8 on the driven shaft or shafts 9. As it is desirable to efiect a change in the length of stroke of the piston in the said cylinders, the pitmen are adjustably connected to the crank arms or disks, the latter being longitudinally slotted, and the pivot-pins connecting the pitmen with the crank-arms are adjustably secured within these slots. It is also desirable to change the position of the movement of the piston, as well as the length of such movement, and to this end the pit' men are formed in two sections adapted to slide over each other and are held in their adjusted positions by means of clamps-such, for example, as. those clearly illustrated in Figs. 1 and 2. These clamps consist of plates 10 10, each having oblong slots therein, the walls of said slots being provided with square or sharp corners. These plates are connected at one end by any suitable form or construction of spring, whereby the opposite ends of the plates will be forced normally apart, and when so forced apart the sharp edges of the slots will bite into the sections of the pitmen and thereby hold thevsame relatively stationary. When it is desired to adjust the length of the pitmen, the free ends of the plates are pressed toward each other, thereby disengaging their edges from the sections of the pi men and permittin g the latter to be adjusted.

As clearly shown, the receiving cylinders or chambers 2 2 are connected by pipes 11 11 to receptacles containing the liquids to be mixed. Said pipes are preferably connected to ports 13 13* in the lower ends of the cylinders. Within these ports are arranged check-valves 14 14, adapted to perniit the liquid to flow through said'ports into the cylinders 2 2*, but to prevent any outflow therethrough. The lower ends of the receivingcylinders 2 2* are also connected by passages 15 15 to the lower end of the mixing-cylinder 1. While these ports or passages may connect directly to the cylinder 1, it is preferred to connect them through the medium of an auxiliary mixing-chamber 16,.in which the stirrer 17 may be placed. This chamber 16, when employed, is connected by a port 18 with the cylinder. The passages 15 15 are provided with check-valves'19, adapted to permit the flow of liquid from the receiving and measuring cylinders 2 2 to the mixingcylinder 1, but to prevent any return-flow from the latter. In order to efiect a thorough commingling of the fluids with each other, passages 15 15 enter the chamber 16 tangentially and in such direction as to im part an opposite direction of flow to the fluids from the'two receiving-chambers. The mixing-cylinder 1 is provided with a dischargeopening 20 at its lower end, said opening being provided with a check-valve 21, adapted to open outward and permit the escape of the liquids into the receiving-can located on a table 21, adjustably secured to the frame or standard 3. In order to provide for the automatic shifting of the cans into and out of line with the discharge-opening in the mixing-cylinder, the carrying-belt 23 is arranged upon pulleys 24, which are so located that the belt can pass through the groove in the upper surface of the table 21. One of these pulleys is driven by a suitable train of gearing, as shown in Figs. 1 and 2, from the power-shaft 9. Itwill be observed that the belt 23 has its path of movement at one side of the cylinder, and in order to move the cans from this carrying-belt into position to be filled a shifting-wheel 25 is arranged to rotate on the table 21 above the belt 23. This Wheel is provided with a tubular shaft 26, having a longitudinal groove therein for engagement with the spline 27 of the vertical shaft 28, which is mounted in suitable bearings in brackets 29, extending from the standard 3, and is provided at its upper end with a bevel-pinion 30, driven, as shown, by mutilated gear from the shaft 9*. As shown in Figs. 2 and 3, the wheel 28 is provided with a series of pockets, into which the can is shifted by the belt and by which the can is carried around under the mixing-cylinder, and, after being filled, is again shifted onto the belt on the opposite side of the wheel. The shifting wheel is provided with four pockets and the mutilated or intermittent gear is constructed to give one fourth of a revolution to each revolution of the shaft 9, as at each revolution of said shaft a sufficient quantity of material is drawn into the receiving-chambers, forced into the mixingcylinder, and discharged into a can, as will be hereinafter described.

In order to rotate the stirrer 17, the latter is mounted upon a shaft 31, extending down' through the plug 32, which closes 'the lower end of the mixing-chamber 16. Motion is' transmitted to the shaft 31 from a shaft 33 by bevel-pinions, and the shaft 33 is in turn rotated through a suitable gearing. and shafting by the shaft 34, which transmits motion from the power-shaft 9 to the shaft of the driven pulley 24. 1

In describing the operation of the machine it will be supposed that the piston 3 in the mixing-cylinder 1 is at its lowest position, A

just having discharged a quantity of material into-a can, and the pistons 4 4 are at the upward limit of their movement and the cylinders 2 2 ave been filled with the materials to be mixe by the upward'movement of said piston. As the power-shaft revolves the pistons 4 4 willdescend, forcing the materials contained therein through the passages into and through the mixing-chamber 16 and into the mixing-cylinder 1, the piston 3 atthe same time moving upward. As soonas the position of the several pistons has been reversed from that shown in Fig. 1 the piston 3 will be moveddown, thereby forcing the mixed materials through the discharge-opening into a can, and the pistons 4 4 will move upward, drawing additional quantities of material into the receiving-cylinders 2 2. It will be readily understood that by changing the length of stroke of the several pistons and also the positions of such strokes in the cylinder in the manner hereinbefore described the proportions of materials to be mixed can be accurately adjusted, as also the quantities of such materials which are to be mixed and placed in cans at each revolution of the machine. As the table 22 is adj ustably mounted upon its support, the size of can to be filled can also be varied.

As it is desirable to force all the materials out of the cylinders at each stroke, the pitmen 5, 6, and 6 have a yielding connection to their respective pistons, such yielding con nection or cushion being formed by a rubber sleeve 35, surrounding the sleeve on the pin connecting the pitmen and pistons, as clearly shown in Fig. 1.

While any suitable form or construction of I check-valve can be employed for preventing return movements of the liquids, that shown in Fig. 4. is readily adaptable for the purpose, and consists of a shell or outer wall and a valve 36, adapted to be seated on said shell or Wall and provided with a. guide stem 37. This valve is seated by a spring 38, surrounding the stem and hearing at one end against an adjustable stop 39 on the stem and a guidesocket 40, supported within the shell by radial arms, the shell, guide, and its supporting arms being preferably formed integral with' each other.

We claim herein as our invention- 1. In an apparatus for mixing liquids, the combination of a series of two or more receiving and measuring cylinders, a mixing-cylinder provided with a discharge-opening and connected with the meas-uring-cylinders, pistons for forcing the liquids from said cylinders and mechanism for simultaneously moving the piston of the mixing-cylinder in one direction and the pistons of the measuringcylindersin the reverse direction, substantially as set forth.

2; In an apparatus for mixing liquids, the combination of a mixing-cylinder provided with a discharge-opening, a series of two or more receiving and measuring cylinders, a

mixing-chamber connected to the mixing and measuring cylinders, and pistons for forcing the liquids from said cylinders, substantially as set forth.

3. In an apparatus for mixing liquids, the combination of a mixing-cylinder provided with a discharge-opening, a series of two or more receiving and measuring cylinders connected to the mixing-cylinder and pistons having an adjustable length of stroke for forcing the liquids from said cylinder, substantially as set forth.

4. In an apparatus for mixing liquids, the combination of a mixing-cylinder provided with a discharge-opening, a series of two or more receiving and measuring cylinders connected to the mixing-cylinder, and pistons said chamber, and pistons for forcing the liqprovided with adjustable pitmen for forcing uids from said-cylinders, substantially as set the liquids from the cylinders, substantially f0rth.- as set forth. In testimony whereof We have hereunto set 5 5. In an apparatus for mixing liquids, the our hands. combination of a mixing-cylinder provided WALTER R. DIEHL.

with a discharge-opening, aseries of two or GRANT MOCARGO. more receiving and measuring'cylinders, a Witnesses: mixing-chamber connected to the mixing and DARWIN S. WOLCOTT,

1o measuring cylinders, a stirrer arranged in F. E. GAITHER. 

